漆酚缩醛亚胺环氧涂料的研制及其性能

Preparation and Properties of Urushiol and Aldimine Condensation Polymer

本文利用甲醛与环氧树脂的多元胺固化剂二乙烯三胺、漆酚反应,先合成漆酚醛亚胺(PUFD),再与环氧树脂(ER)混合,使PUFD中的活泼氢与ER中的环氧基反应,制备PUFD/ER涂料。反应过程中多元胺链和环氧基反应时相互缠绕,形成分步互穿网络聚合物。PUFD/ER涂料兼具了漆酚和环氧树脂的优异性能,耐磨蚀,硬度高,柔韧性好,光泽度大。

Urushiol and aldimine condensation polymer （PUFD） was synthesized by the reaction among formaldehyde, diethylene triamine which was acted as curing agent of epoxy resin （ER） and urushiol. Then, the coating of PUFD/ER was obtained by mixing PUFD and ER when the lively hydrogen atoms in PUFD reacted with epoxy groups in ER. During the reaction of PUFD and ER, the sequential interpenetrating polymer network formed attributed to intertwist between multi - amine chains and epoxy groups. The coating of PUFD/ER possessed the excellent characteristic of urushiol and epoxy resin, which were wear - corrosion resistance, high hardness, good flexibility and high glossiness.